Revert of Restrict ModalDialogTest#testPromptModalDialog to non-low-end devices

chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java
index 9513ab3ee8aab1e0e2e50165222711ce93624362..5e14dc0c98ceee13ccbe38e600c7c76601f94a7b 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/ModalDialogTest.java
@@ -3,8 +3,6 @@
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser;
-
-import static org.chromium.base.test.util.Restriction.RESTRICTION_TYPE_NON_LOW_END_DEVICE;
 
 import android.content.DialogInterface;
 import android.support.v7.app.AlertDialog;
@@ -17,7 +15,6 @@
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.Feature;
-import org.chromium.base.test.util.Restriction;
 import org.chromium.base.test.util.RetryOnFailure;
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.chrome.R;
@@ -140,7 +137,6 @@
      */
     @MediumTest
     @Feature({"Browser", "Main"})
-    @Restriction({RESTRICTION_TYPE_NON_LOW_END_DEVICE}) // crbug.com/653685
     public void testPromptModalDialog()
             throws InterruptedException, TimeoutException, ExecutionException {
         final String promptText = "Hello Android!";